Home / 31,798.88-43,857.41-28,168.81

Finding the Fourth Proportional to 31,798.88, 43,857.41 and 28,168.81

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Solution

The fourth proportional to 31,798.88, 43,857.41 and 28,168.81 is: 38,850.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,798.88 : 43,857.41 = 28,168.81 : x
  2. Step 2: Convert to fraction form
    31,798.88/43,857.41 = 28,168.81/x
  3. Step 3: Cross multiply
    31,798.88x = 43,857.41 × 28,168.81
  4. Step 4: Simplify right side
    31,798.88x = 1,235,410,798.89
  5. Step 5: Solve for x
    x = 1,235,410,798.89/31,798.88
  6. Step 6: Final answer
    x = 38,850.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.